4. Alles in der "Kunst der Fuge" kann leicht von zwei Händen erreicht werden
5. Wegen seiner beschränkten Möglichkeiten scheidet das Clavichord aus.
Leonhardt resümiert: "The Art of Fugue has been written with an extraordinary knowledge of the technical possibilities of ten fingers on a keyboard. The work does not only show Bach on his immense creative height, but also as the grandiose master of the keyboard."